For a simultaneous worldwide launch they need to start manufacturing from the beginning of the year, for sure (and they'll still be chasing demand well into 2021).
Even for MS, whom i'm Sure won't want to be splitting up the world into 1st and 2nd tier regions again.
Not really true at all. TDP impacts majorly on the cost of the console overall, since it determines the:
- Cost and complexity of the cooling solution
- Cost and complexity of the PCB layout
- Which in turn influences the size, dimensions and weight of the console
- Which in turn influences the shipping and handling costs for distribution
TDP is largely related to console power consumption which defines the power delivery system and cost and design of the PSU, which also influenced the above.
Overall, TDP will be related to overall console cost with a curve whose gradient increases above a certain inflection point (which will comprise the area around where the sweet spot for design will reside).